3 edition of Removal of Magnesium and Magnesium Chloride From Titanium Sponge by Vacuum Distillation. found in the catalog.
Removal of Magnesium and Magnesium Chloride From Titanium Sponge by Vacuum Distillation.
United States. Bureau of Mines.
|Series||Report of investigations (United States. Bureau of Mines) -- 4837|
|Contributions||Cook, M., Wartman, F.|
Reduction and Distillation Process. Porous titanium sponge lumps are produced by utilizing the reaction between purified titanium tetrachloride and molten magnesium and then removing the magnesium metal and magnesium chloride contained in the produced titanium sponge by applying the vacuum distilling method to generate high quality titanium. magnesium and the reaction product, magnesium chloride (MgCl 2), were removed by leaching or draining and vacuum distillation. At this stage, titanium sponge with % purity was successfully obtained. The titanium reactor did not appear to be damaged and thus proved its suitability for the magnesiothermic reduction of titanium subhalides.
The manufacture of titanium powder from reduced titanium sponge or sponge-like product includes (a) magnesium-thermic reduction of titanium chlorides in a reactor, (b) preliminary distillation of the reaction mass to the content of magnesium chloride of %, (c) cooling of the obtained sponge block in argon, (d) crushing and grinding the. After the reaction, excess magnesium and the reaction product, magnesium chloride (MgCl2), were removed by leaching or draining and vacuum distillation. At this stage, titanium sponge with %.
Residual MgC12 and magnesium metal entrained in the titanium sp onge are separated from the sponge by one of the following procedures: 1. Removal of MgC12 and magnesium by vacuum distillation from a heated pot at a temperature of °C and a vacuum of below microns of mercury. This invention relates to a method for producing titanium by reaction of titanium tetrachloride with magnesium in a reactor, wherein the temperature in the reactor is above the melting point of magnesium and below the melting point of magnesium chloride, wherein the reaction results in formation of particles comprising titanium, and wherein the particles are removed from the reactor .
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Removal of magnesium and magnesium chloride from titanium sponge by vacuum distillation [Cook, M. A.] on *FREE* shipping on qualifying offers. Removal of magnesium and magnesium chloride from titanium sponge by vacuum distillation.
Additional Physical Format: Online version: Cook, M.A. Removal of magnesium and magnesium chloride from titanium sponge by vacuum distillation (OCoLC) Thermodynamics analysis and affecting factors of vacuum distillation on removal of chloride impurities from titanium sponge were studied.
The theoretical results show that volatilization ability of Mg,MgCl 2, TiCl 2 and TiCl 3 are very strong under vacuum when distillation temperature is more than °C. And chloride impurities could be removed more effectively by improving Cited by: 6. The Kroll process involves four sub-processes: (1) the chlorination process, where titanium oxide feed is chlorinated in the presence of carbon to produce TiCl 4; (2) the reduction and separation process, where TiCl 4 is reduced with magnesium metal, from which titanium sponge is recovered; (3) the crushing and melting process, where crushed titanium sponge is melted in a Author: Osamu Takeda, Takanari Ouchi, Toru H.
Okabe. In cases when the plant production rate is slowed, magnesium can be cast and stored. Casting magnesium chloride is also possible, however magnesium chloride is more difficult to store due to its hygroscopic nature.
Vacuum distillation process TOHO timet. The vacuum distillation process was developed in parallel to the MRAL : Matthew R. Earlam. Vacuum distillation is the alternate, and presently preferred, technique for removing magnesium and magnesium chloride from titanium.
Vacuum distillation is performed at a temperature of °C, at which temperature the vapor pressure of magnesium is 76 mm of mercury and the vapor pressure of magnesium chloride is mm of mercury.
The second step involves vacuum distillation in which the magnesium chloride is removed from the titanium. During vacuum distillation the magnesium chloride is volatilised and the micron sized.
Ina vacuum distillation procedure, developed by the Bureau of Mines for removing magnesium chloride and excess magnesium from crude zirconium, was modified and adapted at Bounder City, Colorado to purify titanium sponge.
Electrochemical reduction of TiO2 in calcium chloride bath Sponge Idaho Titanium Technologies (ITT) reduction of TiCl4 by magnesium followed by vacuum distillation of reduced mass on kg/batch size and handling of titanium sponge for its size reduction and quality evaluation.
() Mohandas K S and Fray D J, FFC. of low-grade titanium scraps in the market. Therefore, the development of anti-contamination and eﬃcient removal processes for oxygen and iron is essential for the eﬃcient utilization of titanium. The development of these technologies is vital for expanding the titanium industry through innovation in both titanium smelting and recycling.
By the subsequent cooling and vacuum distillation to remove the magnesium and magnesium chloride in sponge titanium, purer sponge titanium (–%) can be produced.
MgCl 2 obtained from reduction of TiCl 4 is sent to electrolysis sector to produce chlorine and magnesium. Pure titanium tetrachloride is reduced using molten magnesium to produce titanium sponge and fed to vacuum distillation to remove residual magnesium and magnesium chloride (MgCl 2) in the titanium cake.
iii. Electrolysis of magnesium chloride. The magnesium chloride, which is a by-product of the reduction reaction, is decomposed into magnesium.
The titanium sponge plant is designed to produce TPY of commercially pure Titanium sponge by the reduction and pyro-vacuum distillation of anhydrous titanium tetrachloride (TiCl 4) with Magnesium Magnesio- Thermic Reduction of Titanium TetraChloride(TiCl 4) into Titanium Sponge (Ti) and Magnesium Chloride i.e.
M g C l 2. TiCl 4 (g) + 2 Mg. USA USA USA USA US A US A US A US A US A US A US A US A US A US A US A US A Authority US United States Prior art keywords vessel titanium magnesium reaction carbon Prior art date Legal status (The legal status is an assumption and is not a.
Use of at least M magnesium chloride solution for at least min, leads to introduction of to at% magnesium at a distribution close to saturation on the titanium surface. The essence of magnesium reduction is at DEG ~ DEG under argon atmosphere, let four titanium chloride and magnesium were obtained by the reaction of sponge titanium and magnesium chloride, magnesium chloride removal in titanium sponge and excess magnesium by vacuum distillation to obtain pure titanium by distilled condensate molten metal recovery magnesium.
We employ vacuum distillation to eﬀectively remove magnesium and magnesium chloride entrapped in the titanium sponge after the reduction reaction.
This allows us to produce high-quality titanium sponge that is suitable for melting. The magnesium reacts with the chlorine producing liquid magnesium chloride.
This leaves pure titanium solid since the melting point of titanium is higher than that of the reaction. The titanium solid is removed from the reactor by boring and then treated with water and hydrochloric acid to remove excess magnesium and magnesium chloride.
Our titanium sponge is manufactured using our own unique technology based on the Kroll process, which reduces titanium tetrachloride with metal magnesium. One of the major characteristics of our method is the advanced vacuum distillation method, which can remove magnesium and magnesium chloride contained in produced titanium sponge effectively.
The reduction process is carried out in a batch giving metal sponge and magnesium chloride in the reduced mass. of vacuum distillation on removal of chloride impurities from titanium sponge.
The molten MgCl 2 produced by vacuum distillation in magnesium thermal reduction process was treated by the direct oxidation thermal decomposition method to produce super fine MgO with high purity. The magnesium produced by thermal reduction of MgO could be returned to .USA USA USA USA US A US A US A US A US A US A US A US A US A US A US A US A Authority US United States Prior art keywords metal vessel reaction magnesium distillation Prior art date Legal status (The legal status is an assumption .Direct Electrochemical Reduction of Titanium Dioxide to Titanium in Molten Calcium Chloride Article (PDF Available) in Nature () October with 2, Reads How we measure 'reads'.